PCA82C251T/N,118

Drivers, Receivers, Transceivers Overview

The PCA82C251T/N,118 is a CAN transceiver designed for 24 V automotive systems, serving as the interface between a CAN protocol controller and the physical bus. It provides differential transmit capability to the bus and differential receive capability to the CAN controller. The device supports high-speed communication up to 1 MBd and is fully compatible with the ISO 11898-24 V standard. Key electrical parameters include a supply voltage range of 4.5 V to 5.5 V, a maximum transmission speed of 1 MBd, and an ambient operating temperature range from -40 °C to +125 °C. The component features short-circuit protection against battery and ground faults, thermal protection, and low-current standby mode capabilities.

Drivers, Receivers, Transceivers Feature Summary

• Fully compatible with the ISO 11898-24 V standard for robust automotive communication
• Includes slope control functionality to reduce Radio Frequency Interference (RFI)
• Provides short-circuit proof protection to battery and ground in 24 V powered systems
• Features thermal protection that limits current if junction temperature exceeds approximately 160 °C

Drivers, Receivers, Transceivers Applications

• High-speed applications in trucks
• High-speed applications in buses
• Automotive CAN network nodes requiring 24 V system compatibility

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring a high-speed CAN transceiver specifically optimized for 24 V automotive environments. Ensure the application supports the SO8 plastic small outline package and operates within the specified -40 °C to +125 °C temperature range. Consider the slope control pin configuration if RFI reduction is required for unshielded bus lines.

Drivers, Receivers, Transceivers Part Context

The PCA82C251 series represents NXP Semiconductors' solution for high-speed CAN communication in heavy-duty vehicles. This specific part number denotes the surface-mount version in an SO8 package. The datasheet revision history indicates that the DIP8 package has been discontinued, making the SMD variant the primary option for new designs.

Drivers, Receivers, Transceivers Replacement Considerations

PCA82C250T/N4M,112

Drivers, Receivers, Transceivers FAQ

How is the Slope Control mode activated on the PCA82C251?

Slope control mode is activated by connecting a resistor between Pin 8 (Rs) and Ground. The rise and fall slopes are programmed via this resistor, with the slope being proportional to the current output at Pin 8.

What happens to the transmitter outputs during thermal protection events?

If the junction temperature exceeds approximately 160 °C, the limiting current of both transmitter outputs is decreased. This reduces power dissipation and lowers the chip temperature while keeping all other parts of the IC operational.

Can the PCA82C251 operate without disturbing the bus if it is unpowered?

Yes, the device ensures that an unpowered node does not disturb the bus lines, allowing for safe insertion or removal of nodes in the network.